航天器工程2011，Vol.20Issue(5)：125-130,6.
卫星热真空试验微波开关分子污染防护研究
Research on Prevention of Molecular Contamination of Microwave Switches in Thermal Vacuum Test for Satellite
张洪波 1刘天雄 1李长江1
作者信息
- 1. 北京空间飞行器总体设计部,北京100094
- 折叠
摘要
Abstract
The output power of microwave switches declines in thermal vacuum test of some satellite due to molecular contamination.This paper firstly analyses the components of contamination molecules and the movement mechanism,and then brings forward the active protection measures of cutting off contamination molecules＇ transfers route and the passive protection measures of preventing contamination molecules condensation on the basis of kinetic theory.The results of thermal vacuum test indicates that molecular contamination that enters the switches is reduced considerably and the switches work without any trouble through the test.关键词
卫星/微波开关/热真空试验/分子污染/防护措施Key words
satellite/microwave switche/thermal vacuum test/molecular contamination/protective measure分类
航空航天引用本文复制引用
张洪波,刘天雄,李长江..卫星热真空试验微波开关分子污染防护研究[J].航天器工程,2011,20(5):125-130,6.
